1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sveta [45]
3 years ago
12

Describe what a planetesimal is. Is it related to a protoplanet?

Physics
1 answer:
zheka24 [161]3 years ago
4 0

Answer:

A planetesimal is an object formed from dust, rock, and other materials. The word has its roots in the concept infinitesimal, which indicates an object too small to see or measure. Planetesimals can be anywhere in size from several meters to hundreds of kilometers.

Protoplanets are thought to form out of kilometer-sized planetesimals that gravitationally perturb each other's orbits and collide, gradually coalescing into the dominant planets.

You might be interested in
You are at the top of the Empire State Building on the 102nd floor, which is located 373 m above the ground, when your favorite
Liula [17]

Answer:

1.5 m

Explanation:

H = actual height of the superhero = ?

H₀ = height of the superhero as observed = 1.73 m

v = speed of the superhero = 0.50 c

Using the equation

H = H_{o} \sqrt{1 - \left ( \frac{v}{c} \right )^{2}}

Inserting the values

H = 1.73 \sqrt{1 - \left ( \frac{0.50 c}{c} \right )^{2}}

H = 1.5 m

3 0
3 years ago
What is escape velocity ​
DanielleElmas [232]
Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion. For example, a spacecraft leaving the surface of Earth needs to be going 7 miles per second, or nearly 25,000 miles per hour to leave without falling back to the surface or falling into orbit.
8 0
2 years ago
Two blocks are the same size one block has a higher temperature than the other. Which describes the thermal energy of these bloc
shepuryov [24]
The block that has a higher temperature describes the thermal energy of these blocks. Thermal energy is a measure of internal energy - therefore, the block with the higher temperature has more internal energy than the block with the lower temperature, meaning it's thermal energy is greater. 
8 0
2 years ago
Include units with all of your answers. A 1.84 kg bucket full of water is attached to a 0.76 m long string.
aleksandrvk [35]
<span>c. What is the magnitude of the tension in the string at the bottom of the circle if you are swinging it at 3.37 m/s? </span>
7 0
3 years ago
What does weight require?
kherson [118]

Answer:

kg

Explanation:

easy question to be honest

7 0
2 years ago
Other questions:
  • A horizontal force of 90.0 N is required to push a 75kg object along a horizontal surface at a constant speed. What is the magni
    13·1 answer
  • In a client with lower crossed syndrome, which of the following muscles is lengthened?
    6·1 answer
  • How do different lense types connect to helping locate sharks through mechanical radio waves?​
    6·1 answer
  • Technician A says some compressor service procedures can be performed on the vehicle if space permits. Technician B says modern
    5·1 answer
  • Punnet square to show a cross between two short-haired cats
    7·2 answers
  • PLEASE HELP URGENT!!!!!!!!!!!!!
    7·1 answer
  • A student pushes on a crate with the force of 100 Newtons directed to the right. What force does the crate exert on the student?
    7·1 answer
  • How are ions different from atoms
    14·1 answer
  • If a rock is thrown upward on the planet Mars with a velocity of 10 ms, its height in meters seconds later is given by (a) Find
    10·1 answer
  • PLEASE HELP I WILL GUVE BRAINLY
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!